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Showing content from https://github.com/kubernetes-client/csharp below:

kubernetes-client/csharp: Officially supported dotnet Kubernetes Client library

dotnet add package KubernetesClient

dotnet msbuild /Restore /t:SlnGen kubernetes-client.proj

You should be able to use a standard KubeConfig file with this library, see the BuildConfigFromConfigFile function below. Most authentication methods are currently supported, but a few are not, see the known-issues.

You should also be able to authenticate with the in-cluster service account using the InClusterConfig function shown below.

Metrics are built in to HttpClient using System.Diagnostics.DiagnosticsSource. https://learn.microsoft.com/en-us/dotnet/core/diagnostics/built-in-metrics-system-net

There are many ways these metrics can be consumed/exposed but that decision is up to the application, not KubernetesClient itself. https://learn.microsoft.com/en-us/dotnet/core/diagnostics/metrics-collection

// Load from the default kubeconfig on the machine.
var config = KubernetesClientConfiguration.BuildConfigFromConfigFile();

// Load from a specific file:
var config = KubernetesClientConfiguration.BuildConfigFromConfigFile(Environment.GetEnvironmentVariable("KUBECONFIG"));

// Load from in-cluster configuration:
var config = KubernetesClientConfiguration.InClusterConfig()

// Use the config object to create a client.
var client = new Kubernetes(config);

var namespaces = client.CoreV1.ListNamespace();
foreach (var ns in namespaces.Items) {
    Console.WriteLine(ns.Metadata.Name);
    var list = client.CoreV1.ListNamespacedPod(ns.Metadata.Name);
    foreach (var item in list.Items)
    {
        Console.WriteLine(item.Metadata.Name);
    }
}

var ns = new V1Namespace
{
    Metadata = new V1ObjectMeta
    {
        Name = "test"
    }
};

var result = client.CoreV1.CreateNamespace(ns);
Console.WriteLine(result);

var status = client.CoreV1.DeleteNamespace(ns.Metadata.Name, new V1DeleteOptions());

There is extensive example code in the examples directory.

git clone git@github.com:kubernetes-client/csharp.git
cd csharp\examples\simple
dotnet run

While the preferred way of connecting to a remote cluster from local machine is:

var config = KubernetesClientConfiguration.BuildConfigFromConfigFile();
var client = new Kubernetes(config);

Not all auth providers are supported at the moment #91. You can still connect to a cluster by starting the proxy command:

$ kubectl proxy
Starting to serve on 127.0.0.1:8001

and changing config:

var config = new KubernetesClientConfiguration {  Host = "http://127.0.0.1:8001" };

Notice that this is a workaround and is not recommended for production use.

The project uses XUnit as unit testing framework.

To run the tests:

cd csharp\tests
dotnet restore
dotnet test

You'll need a Linux machine with Docker.

Check out the generator project into some other directory (henceforth $GEN_DIR).

cd $GEN_DIR/..
git clone https://github.com/kubernetes-client/gen

# Where REPO_DIR points to the root of the csharp repository
cd
${GEN_DIR}/openapi/csharp.sh ${REPO_DIR}/src/KubernetesClient ${REPO_DIR}/csharp.settings

• Starting from 2.0, dotnet sdk versioning adopted

• Kubernetes Version here means the version sdk models and apis were generated from

• Kubernetes api server guarantees the compatibility with n-2 (n-3 after 1.28) version. for example:

  • 1.19 based sdk should work with 1.21 cluster, but not guaranteed to work with 1.22 cluster.
    

  and vice versa:

  • 1.21 based sdk should work with 1.19 cluster, but not guaranteed to work with 1.18 cluster.
    Note: in practice, the sdk might work with much older clusters, at least for the more stable functionality. However, it is not guaranteed past the n-2 (or n-3 after 1.28 ) version. See #1511 for additional details.
    

  see also https://kubernetes.io/releases/version-skew-policy/

• Fixes (including security fixes) are not back-ported automatically to older sdk versions. However, contributions from the community are welcomed 😊; See Contributing for instructions on how to contribute.

• * KubernetesClient.Classic: netstandard2.0 and net48 are supported with limited features

Please see CONTRIBUTING.md for instructions on how to contribute.

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